Sorry, but I disagree with this statement. EI is based fundamentally on the concept of nutrient deficiency avoidance by dosing to slight excess, which includes CO2. Inappropriate limiting CO2 is just...

Ultramouse, what can you grow with Dennerle/Dupla products that you can't grow with Kent/Seachem products? And why would you want to pay through the nose for chemicals you can get from your pharmacy...

FYI - Siesta is a myth. It does nothing to help plants and only helps the algae because they respond much faster to changes in the environment. You can lower the light intensity or the total duration...

Carolyn, I've got news for you, PO4 level of 5ppm have nothing to do with green water. Your green water arose out of a NH4/CO2 problem. The EI basic dosage assumes maximum light and maximum CO2 for a...